Website: correct event listener
Website: added FOSDEM'14 presentation
Web site: Small changes to presentation notes
Website: fix for embedded Sozi presentation in webkit
Website: added links tutorial
Website: Started page about transition effects
Website: added gnuplot scripts for transition timing functions
Added FOSDEM lightning talk
Update tutorial-first.md
13.11 is now cosidered stable
More details for downloading from Google Drive
Merge branch 'preview'
Merge pull request #214 from Dvvd/patch-1

Update tutorial-first.md
Web site: small fixes, typos and style
Tutorial: media
Update create.md
Update play.md
Added guide for web site translators
Merge pull request #218 from Dvvd/patch-3

French translation of play.md
Merge pull request #217 from Dvvd/patch-2

French translation of create.md